Improvement in reverberatory furnaces



1.. MORRISON.

Reverberatory Furnaces.

N0.141,371. Patentedjuiy 29,1873.

Whewea, 1 @?M%;

UNITE STATES JOHN MORRISON, OF J OLIET, ILLINOIS.

PATENT OFFICE.

IMPROVEMENT IN REVERBERATORY FURNACES.

Specification forming part of Letters Patent No. 141,371, dated July 29, 1873; application filed May 8, 1873.

To all whom it may concern:

Be it known that I, JOHN MORRISON, of Joliet, county of Will, State of Illinois, have invented certain Improvements in Puddling and other Furnaces, of which the following is a specification:

The object of my invention is to economize fuel, consume the smoke, and obtain a'most intense heat in furnaces for puddlin g, balling, or heating iron and steel; and this object I accomplish by arranging two furnaces, A and B, (shown in the plan view, Figure l, of the accompanying drawing,) side by side or back to back, and reversed, in respect to each other, so that the fire-place a of the furnace A shall be adjacent to the stack end d of the furnace l3 and communicate therewith through a flue,

f, and the fire-place b of the latter furnace communicate with the adjacent stack end?) of the furnace A through a flue, g, the fines and stacks being provided with dampers, so that the waste products of combustion from either furnace may be caused to pass entirely through the other and out through its stack, and the said flues being also, if desired, tilled with firebricks, c, as shown in Fig. 2, through the interstices, between which air may be passed, and thus intensely heated before reaching the fire-places.

My invention will be fully understood from the following detailed description of its operation: The furnace A, after being properly heated, is charged, and the damper h on the fine f and that in the stack 6 are closed, while the damper i in the fine 9 and that in the stack 01 are opened, so that the flame and heated gases, after. traversing the furnace A, shall pass through the flue g, and thence through the entire length of the furnace B, which is highly heated by the same, and finally escape through the stack d, as indicated by the arrows. When the furnace B is charged the position of the dampers is reversed, so that those which were previously opened shall be closed, and vice versa, the flame and gases then passingthrough the flue g and furnace A to the stack 0, the heat in the latter furnace being thus kept up, so that the two furnaces can be used successively without loss of time or unnecessary expenditure of fuel. By filling or partially filling the fines f and g with fire-bricks :r so laid that there shall be numerous interstices between them, I am enabled to first heat these bricks by means'of the Waste products of combustion passing from one furnace to the other, and then by passing air through this mass of hot bricks to impart to the same such intense heat that it will combine with and effectually consume the smoke in passing over and through the fire-places to the furnaces.

Although I prefer and generally intend to use the furnaces A and B alternately, as above described, they may, if desired, be used separately, or one at a time, all that is necessary in such case being to close both of the dampers h and t and to open the dampers in the stacks.

I do not claim, broadly, the combination of two furnaces and communicating fine, Whereby the waste heat from one furnace may be passed through and utilized in the other; but

I claim The combination. of the two reversed furnaces A and B, their stacks e and d, the connecting-fl ues y and f, and the dampers in the said stacks and fines, all substantially as and for the purpose specified.

' In testimony whereof I have signed my name to this specification in the'presence of two subscribing witnesses.

JOHN MORRISON. Witnesses:

Tnos. H. HUTCHINS, WILLIAM PRIoE. 

